Turn scattered health data into answers.

Already buried in your sleep, skin, labs and scans.

Free on iPhone. Want first word on what's coming? Leave your email.
You see the evidence grade on every insight. You get answers from a real person.
Illustrative example, not a diagnosis. Four signal cards (active energy, skin, labs, scans) converge on one read: your glucose is the pattern most worth watching, associated with your active energy.

Illustrative example. Not a diagnosis.

Watch the film · A Brief History of Seeing
One day a year with your doctor.
364 on your own.
Your body has been keeping a record your entire life. Now you can see your sleep, labs, body scans and skin as one, and walk into every appointment with all of it.
A walk-through · Farrah, 41
Hear what your body has been saying all along.
Five real screens from the app. Tap the phone or press Next.
Farrah is a composite example. Her numbers are demo data.
Today's read, the morning score and what shaped it
The Skin room: skin score, skin age and eye age
The Composition room: lean mass percentile and DEXA
The Labs room: markers against performance bands
The Routine room with interaction checks
Step 1 of 5 · Today

Your day, read before it begins.

A recovery score from last night's sleep, plus one suggested move for the day ahead.

Two worked examples · Farrah, 41 and Adrian, 44
You've done everything you could see. Now see the rest.
Farrah and Adrian are composite examples. Their numbers are demo data.

This year Farrah put over $3,000 into six aesthetic treatments: skin resurfacing, Botox, microneedling, a chemical peel, laser and filler. Her skin's radiance score climbed from 64 in December to 73 by June. Then it stopped climbing.

607080 today 1 2 3 4 5 6 Now · 73 DecJanFebMarAprMayJun
Radiance score ① Skin resurfacing   ② Botox   ③ Microneedling   ④ Chemical peel   ⑤ Laser   ⑥ Filler
$3,000+
spent on six treatments and a lot of hope
38.5
her ferritin, sitting below its performance band
The pattern no single test could show

In the same months her radiance score stalled, her ferritin sat at 38.5, below its performance band. Understory surfaced the two together. Iron is a cofactor in collagen formation, since the enzymes that build collagen depend on it. What that means for Farrah is her doctor's call, which is why ferritin goes first on her list for her next visit.

Next appointment, she sets the agenda.
Meet Adrian, 44
030 today 11th pct
Lean-muscle percentile, ages 40 to 49. Adrian sits at the 11th.
His body looked like an answer. His scan asked a question.

Adrian looks fit, but his DEXA puts his lean muscle at the 11th percentile for his age group. His whole-body bone score looks fine, and Understory flags his trunk bone in the bottom quarter. In the research, muscle is closely tied to how well we age, and low free testosterone and light protein intake are associated with a blunted response to training. Those are threads worth pulling with his doctor.

11th percentileTracked scan over scan
Seen every day. Understood every month.
Four rhythms that keep pace with you, from a daily read to a brief for your doctor.
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Today's read

A recovery score and one suggested move, ready when you wake.

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The Understory

Once a month, your labs, sleep, body and skin read as one story, ending with the Doctor brief.

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Ask

Ask about your own record in your own words, at any hour. Every answer starts from your data.

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Doctor brief

A section called For your provider closes every monthly report. It gathers the patterns worth raising, so one visit can carry a month of you.

Bring every piece. Meet the whole of you.
Your health has lived in pieces for years. Here's how they come together.
1

Bring what you have

Connect your wearable, photograph a lab results page or add the PDF, then add your DEXA scan and a guided skin capture.

2

Watch the threads appear

Understory lays it all on one timeline, so your labs and sleep sit beside your body scans and skin, and patterns across them come into view. Every insight shows its evidence grade and its sources.

3

Night by night, it gets sharper

If your wearable already has history, your first read starts right away. If not, give it about a week of nights, and every night after adds to it.

4

Walk in ready

Bring your Doctor brief with you, every value carrying its source, and start the conversation from evidence.

From the founder
Read your whole record yourself, and know what it can't tell you yet.
I had Labcorp labs, an Apple Watch, a DEXA scan, and my skin treatments, and no way to see whether the treatments were working. No single doctor had ever read those four records together, because that is not any one doctor's job. So the signals sat in separate apps and PDFs, each telling a sliver of the story. I built Understory to read them as one, and to be honest about what it can see and what it can't yet.
Nav Kaul, founder

The other 364 days start tonight.

Free on iPhone. Start now, and bring every one of those days to your next appointment.

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